Itraconazole Capsules 200 mg in Cat

Itraconazole Capsules 200 mg provide systemic antifungal therapy for cats diagnosed with moderate to severe fungal infections. This prescription-strength triazole antifungal is commonly used in cases where topical treatments are insufficient or when infections involve internal organs. Itraconazole works by inhibiting ergosterol synthesis, an essential component of fungal cell membranes, leading to fungal cell death. Due to its potency and potential liver impact, it must always be used under veterinary supervision with proper monitoring.

Key Benefits

• Broad-spectrum antifungal activity
• Effective against systemic and deep fungal infections
• Good tissue penetration including skin, lungs, and nasal passages
• Suitable for long-term therapy when monitored
• First-line option for several life-threatening mycoses
• Once-daily dosing in most cases

How Itraconazole Works

Itraconazole belongs to the triazole antifungal class. It:

• Blocks ergosterol production in fungal cells
• Weakens fungal cell membranes
• Stops fungal growth and replication
• Allows the immune system to clear infection

Its long half-life allows sustained antifungal activity with consistent dosing.

Indications in Cats

Itraconazole Capsules 200 mg may be prescribed for:

Systemic Fungal Infections

• Blastomycosis
• Histoplasmosis
• Cryptococcosis
• Aspergillosis

Deep or Resistant Skin Infections

• Severe dermatophytosis (ringworm)
• Sporotrichosis
• Refractory yeast infections

Other Indications

• Disseminated fungal disease
• Fungal infections affecting lungs, nasal cavity, or lymph nodes

Veterinary diagnosis through cytology, culture, or imaging is essential before starting therapy.

Dosage Guidelines

Typical recommended dose: 5 mg/kg once daily

*200 mg capsules are high strength and usually require veterinary-directed splitting or compounding.

Treatment Duration

• Dermatophytosis: 4–6 weeks
• Systemic infections: 8–12 weeks or longer
• Continue 2 weeks beyond clinical resolution in many cases

Administer with food to improve absorption.

Administration Tips

• Always give with a meal
• Do not crush without veterinary guidance
• Follow exact weight-based dosing
• Never self-adjust dose

Compounded liquid formulations may be preferred for small cats.

Safety Information

Itraconazole is generally effective but requires monitoring.

Common Side Effects

• Decreased appetite
• Vomiting
• Diarrhea
• Lethargy

Less Common but Serious

• Elevated liver enzymes
• Hepatotoxicity
• Skin ulceration (rare)

Monitoring Requirements

• Baseline liver enzyme testing before treatment
• Repeat liver panel every 2–4 weeks
• Monitor appetite and energy level
• Report yellowing of eyes, vomiting, or weakness immediately

Contraindications

Do not use in:

• Cats with severe liver disease
• Known hypersensitivity to azoles
• Pregnant cats unless strictly necessary

Use cautiously in geriatric cats.

Drug Interactions

Use caution with:

• Cyclosporine
• Cisapride
• Certain antibiotics (macrolides)
• Acid-reducing medications (may reduce absorption)

Always inform your veterinarian about concurrent medications.

FAQs

Is itraconazole safe for cats?
Yes, when prescribed and monitored properly. Liver monitoring is essential.

Can I stop treatment once symptoms improve?
No. Stopping early may cause relapse or resistance.

How long before improvement is seen?
Skin infections may improve within 2–3 weeks. Systemic infections may take longer.

Can itraconazole be given long-term?
Yes, but only with veterinary monitoring.

Storage

• Store at room temperature
• Keep capsules in original packaging
• Protect from moisture